我尝试根据totalEmployee字段对文档进行排序，其中index为index_db，type为departments，a字段为totalEmployee
QueryBuilder qb = QueryBuilders.matchAllQuery();
SearchResponse response = client.prepareSearch("index_db").setTypes("departments")
.addSort(SortBuilders.fieldSort("totalEmployee").order(SortOrder.ASC)).setQuery(qb)
.setSize(100).execute().actionGet();
for(SearchHit hits :response.getHits()) {
System.out.print("id = "+hits.getId());
System.out.println(hits.getSourceAsString());
}字符串
但我犯了错误：
第一个月IllegalArgumentException[Fielddata is disabled on text fields by default. Set fielddata=true on [totalEmployee] in order to load fielddata in memory by uninverting the inverted index. Note that this can however use significant memory.]; }{[q9B7Qs-DSXWC14pjc5zlNg][index_db][1]: RemoteTransportException[[elasticsearch_node][10.64.216.92:9375][indices:data/read/search[phase/query]]]; nested: IllegalArgumentException[Fielddata is disabled on text fields by default. Set fielddata=true on [totalEmployee] in order to load fielddata in memory by uninverting the inverted index. Note that this can however use significant memory.]; }{[q9B7Qs-DSXWC14pjc5zlNg][piyush_db][2]: RemoteTransportException[[elasticsearch_node][10.64.216.92:9375][indices:data/read/search[phase/query]]]; nested: IllegalArgumentException[Fielddata is disabled on text fields by default. Set fielddata=true on [totalEmployee] in order to load fielddata in memory by uninverting the inverted index. Note that this can however use significant memory.]; }{[q9B7Qs-DSXWC14pjc5zlNg][piyush_db][3]: RemoteTransportException[[elasticsearch_node][10.64.216.92:9375][indices:data/read/search[phase/query]]]; nested: IllegalArgumentException[Fielddata is disabled on text fields by default. Set fielddata=true on [totalEmployee] in order to load fielddata in memory by uninverting the inverted index. Note that this can however use significant memory.]; }{[q9B7Qs-DSXWC14pjc5zlNg][piyush_db][4]: RemoteTransportException[[elasticsearch_node][10.64.216.92:9375][indices:data/read/search[phase/query]]]; nested: IllegalArgumentException[Fielddata is disabled on text fields by default. Set fielddata=true on [totalEmployee] in order to load fielddata in memory by uninverting the inverted index. Note that this can however use significant memory.]; }个
3条答案
按热度按时间c2e8gylq1#
由于分析的是totalEmployee字段，弹性要求字段数据值为true以执行排序操作。相反，您可以使用totalEmployee.关键字来实现所需的结果。
下面是工作代码。
字符串
fafcakar2#
最后，我得到了我上面查询的答案。问题是由于Elasticsearch中索引过程中的动态Map。最好使用自己的Map并对long类型字段进行排序（在我的情况下，我试图根据keyword（string）字段类型进行排序）。
xjreopfe3#
您可以在搜索请求中指定排序选项：
字符串